This document provides an overview of Immanuel Kant's deontological ethics. It discusses that for Kant, morality is concerned with doing one's duty rather than personal gain. Kant believed there is a single "Categorical Imperative" or universal obligation that forms the basis of moral rules and duties. For an action to have moral worth, it must be done purely out of respect for the moral law as one's duty, not because of personal interests or desires. The Categorical Imperative takes an unconditional form of "Do X" rather than a conditional "If X, then Y" structure like hypothetical imperatives.